文章基本信息

标题：Exploring Changes in Event-Related Potentials After a Feasibility Trial of Inhibitory Training for Bulimia Nervosa and Binge Eating Disorder
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作者：Chami, Rayane ; Treasure, Janet ; Cardi, Valentina 等
期刊名称：Frontiers in Psychology
电子版ISSN：1664-1078
出版年度：2020
卷号：11
页码：1-12
DOI：10.3389/fpsyg.2020.01056
出版社：Frontiers Media
摘要：In a feasibility trial comparing two forms of combined inhibitory control training and goal planning (i.e. food-specific and general) among patients with bulimia nervosa (BN) and binge eating disorder (BED), we found evidence of symptomatic benefit, with stronger effects among participants receiving a food-specific intervention. The aim of the present study was to examine changes in behavioural outcomes and event-related potentials (ERPs; N2 (00) and P3 (00) amplitudes) from baseline to post-intervention that might suggest the mechanisms underpinning these effects. Fifty-five participants completed go/no-go tasks during two electroencephalography (EEG) sessions, at baseline and post-intervention. The go/no-go task included 'go' cues to low energy-dense foods and non-foods, and 'no-go' cues to high energy-dense foods and non-foods. Datasets with poor signal quality and/or outliers were excluded, leaving forty-eight participants (N = 24 BN; N = 24 BED) in the analyses. Participants allocated to the food-specific, compared to the general intervention group, showed significantly greater reductions in reaction time to low energy-dense foods, compared to non-foods, by post-intervention. Commission errors significantly increased from baseline to post-intervention, regardless of stimulus type (food vs. non-food) and intervention group (food-specific vs. general). There were no significant changes in omission errors. P3 (00) amplitudes to 'no-go' cues marginally decreased by post-intervention, but there was no significant interaction with stimulus type (high energy-dense food vs. non-food) or intervention group (food-specific vs. general). There were no significant changes in N2 (00) amplitudes to 'no-go' cues, N2 (00) amplitudes to 'go' cues, or P3 (00) amplitudes to 'go' cues from baseline to post-intervention. Training effects were only marginally captured by these event-related potentials. Limitations and recommendations for future research were discussed.
关键词：Event-relate potentials; Binge Eating Disorder; Bulimia nervesa; Change process; ERPs